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Digital 9000
| 97
Cleaning and maintaining the Digital 9000 system
L 60 charger
If a problem occurs that is not listed in the above table or if the problem
cannot be solved with the proposed solutions, please contact your local
Sennheiser partner for assistance.
To find a Sennheiser partner in your country, search at
www.sennheiser.com under “Service & Support”.
Problem
Possible cause
Possible solution
The LED
not light up
Charger is not
connected to the
mains
Check if the L 60 is
connected to the NT 3-1
mains unit and if the mains
unit is connected to the
mains (see page 89).
Cascaded L 60
chargers are not
correctly connected
to one another
Check if a maximum of
four L 60 are correctly
connected to one another
(see page 41).
More than four
chargers are
cascaded
Unstable voltage of
the mains unit
Replace the defective mains
unit or mains cable with
a new one.
Mains unit or mains
cable is defective
No contact with the
accupack
Insert the accupack
correctly into the charging
compartment (see page 89).
The LED
not light up
Contacts of the
accupack or contacts
of the charging
compartments
are dirty
Clean the charging contacts
of the accupack and of the
charging compartments
(see page 93).
Accupack is
defective (overaged
or defective
rechargeable
battery cells)
Replace the defective
accupack with a new one.
The LED
flashes
red
Wrong accupack/
individual
rechargeable
batteries/batteries
(primary cells) have
been inserted
Only charge BA 60 or BA 61
accupacks with the L 60
charger.
Accupack
temperature is
too low or too high/
air humidity too
high
Always recharge the
accupack within the
operating temperature range
and the air humidity range
stated in the specifications
(see page 105).
Accupack is
defective (overaged
or defective
rechargeable
battery cells)
Replace the defective
accupack with a new one.